Find Child Control

[shapper]

Hello,

I have a control named Parent in my page.
Parent has many child controls under it which also have other child
controls under them.

I need to find a control named "A" which i don't know exactly where it
is.
I just know that is under parent or under any of Parent Child
controls ...

How can I do this?

Thanks,
Miguel

[bruce barker]

trival:

// find all child controls named "A"

Control[] list = ControlWalker(myControl, delegate(Control ctl)
{
return ctl.ID != null && ctl.ID == "A";
});

......

// control walker method

public delegate bool ControlWalkerMatcher (Control ctl);
public Control[] ControlWalker(
Control ctl,
ControlWalkerMatcher matcher)
{
ArrayList list = new ArrayList();
if (matcher(ctl)) list.Add(ctl);
for (int i=0; i < ctl.Controls.Count; ++i)
{
Control[] childList =ControlWalker(ctl.Controls[i],matcher);
if (childList.Length 0) list.AddRange(childList);
}
return (Control[]) list.ToArray(typeof(Control));
}

-- bruce (sqlwork.com)

shapper wrote:

Hello,

I have a control named Parent in my page.
Parent has many child controls under it which also have other child
controls under them.

I need to find a control named "A" which i don't know exactly where it
is.
I just know that is under parent or under any of Parent Child
controls ...

How can I do this?

Thanks,
Miguel

[shapper]

On Jan 27, 1:01 am, bruce barker <[e-mail]:

trival:

// find all child controls named "A"

Control[] list = ControlWalker(myControl, delegate(Control ctl)
{
return ctl.ID != null && ctl.ID == "A";
});

......

// control walker method

public delegate bool ControlWalkerMatcher (Control ctl);
public Control[] ControlWalker(
Control ctl,
ControlWalkerMatcher matcher)
{
ArrayList list = new ArrayList();
if (matcher(ctl)) list.Add(ctl);
for (int i=0; i < ctl.Controls.Count; ++i)
{
Control[] childList =ControlWalker(ctl.Controls[i],matcher);
if (childList.Length 0) list.AddRange(childList);
}
return (Control[]) list.ToArray(typeof(Control));
}

-- bruce (sqlwork.com)

shapper wrote:

Hello,

I have a control named Parent in my page.
Parent has many child controls under it which also have other child
controls under them.

I need to find a control named "A" which i don't know exactly where it
is.
I just know that is under parent or under any of Parent Child
controls ...

How can I do this?

Thanks,
Miguel

Hi,

Your code is a little bit confusing to me. Why a delegate?
Can't a single function perform the action of searching for the
control?

Thanks,
Miguel